SMALL-SIGNAL MODEL FOR A CONTROLLED ON-TIME BOOST POWER FACTOR CORRECTION CIRCUIT

  • Kang, Yonghan (School of electronic and Electrical Engineering Kyungpook National University) ;
  • Choi, Byungcho (School of electronic and Electrical Engineering Kyungpook National University)
  • Published : 1998.10.01

Abstract

A new small-signal model for the controlled on-time boost power factor correction (PFC) circuit is presented. The proposed small-signal model is valid up to high frequencies over lKHz. The model can be used in designing the voltage feedback compensation of PFC circuits, the control bandwidth of which is maximized with auxiliary means of removing the low-frequency ripple from the output. The accuracy of the model is confirmed by a 200W experimental hardware

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